Crushing machinery



Oct. '25, 1932 w. A. BATTEY CRUSHING MACHINERY Filed Feb. 9, 1951 INVENTOR Patented Oct. 25, 1932 UNITED STATES ("PATENT OFFICE WILLIAM .A. IBATTEY, or rmvnnronn, PENNSYLVANIA, ASSIGNOR TO rENNsYLvANLA cnnsnnn coMrANY, on NEW YORK, N. Y., A CORPORATION on NEW YORK CRUSHING MACHINERY Application filed February 9, 1931. Serial No. 514,583.

My invention relates to crushing machinery of the type employing hammer-carrylng rotor structures, the hammers of which engage j material delivered into their path and effect breakage or rupture thereof by hurling the same against a breaking surface or surfaces forming one wall or part of one wall of the crushing chamber.

In the crushing of raw material of various kinds, it is common to find material contaming a high moisture content, and various materials which are to be crushed, are frequently stored under such weather conditions as to absorb additional moisture.

builds up on the breaking surfaces and seriously impairs the capacity of the machine. The main object of my invention therefore is to provide means that will prevent this building up of a body of sticky or slimy material,'mud, and/or the like, upon said breaking surface or surfaces.

Another object of my invention is to pro- '25 vide a rocking cutting member or scraping blade arranged to be reciprocatively moved or oscillated over a breaking surface (or surfaces) against which the material is hurled 40 crushing structure with which the improved scraping or cleaning mechanism forming the subject of my invention may be employed, and

Fig. 2 is a sectional elevation of a portion of the breaking surface; showing the scrap In the crushing of material in a wet or moist condltion, a mass of hlghly v1sc-1d mud I ing blade in operative position with respect thereto.

.In the present instance the improved scraping means and operating mechanism therefor have been applied to a crushing structure of the type illustrated in the application of George W. Borton, filed August 25, 1928, employing a hammer-carrying rotor member of usual character, arranged within a crushing chamber whose lower portion 1s defined by a cage or screen plvotally,

mounted Within the frame and carrying the usual bars or members with which the hammers of th rotor cooperate.

The frame of the crushing structure is indicated generally at 1, and this may have'a cageor screen comprising side frames 2, pivotally mounted at 3, and carrying the usual cross-bars 4. The rotor structure may be of usual type comprising a series of disks 5,

mounted on a shaft 6; said disks supporting rods 7 from which hammers 8 are hung.

The end wall of the frame carrying the breaking surface may be curved, as clearly indicated in Fig. 2, and this surface, indicated at 9, preferably carries a series of wear plates 9?, suitably secured in place and renewable when worn. The material to be crushed is fed through the usual chute or hopper opening at the upper portion of the frame and is hurled against the breaking surface (or surfaces) and partly broken by impact thereon;

- further breaking or reduction being effected by the hammers 8 cooperating with the crossbars 4 of the cage or screen. 1

culty is had in keeping the breaking surface clean. In practice, a wall of mud builds up on such breaking surface, and such wall bein so much less hard than the normal brea ring surface, there is practically no breaking by impact, and unless removed, the

breaker plate will become clogged with mud f and destroy the efficiency of the machine and .80 When material carrying a large moisture content is being reduced, considerable diffitoswi'ngdng arms 13, which in turn are pivotallyconnected at 13 to the side walls of the crushing structure, and arranged on both sides of the same. If desired, the-pivotal connection 13 for the arms 13rmay be in the form of a cross-bar or shaft extending from side to side of the frame of the crushing structure.

The arms 13 are preferably curved, as indicated in Fig. 1, so as to clear projecting portions of the side frames, and one of these arms may be extended, as indicated at 14,

and connected by means of a link 15, to a erank arm 16, on the end of a shaft 17, connected to gear-reducing means which may .be disposed in a casing 18, and operatively connected to and driven by a suitable motor 19.

The slots 12 formed in the side walls of the crusher frame are on the arc of a circle struck from the axis of the pivotal connection 13'! for the arms 13, and they may be rovided with guideways for engagement 17 Slide-blocks carried at the ends of vthe scraping blade 10 and interposedbetween the trunnions of the latter and said arms 13.

While I have shown a curved breaking surface (or surfaces) engaged by the scraping or eutting'blade 10, it will be understood that any improved operating mechanism which serves to reciprocate or oscillate said blade such breaking surface (or surfaces) may be employed with a cutting or scraping blade arranged for straight line movement; suitable links being interposed between the blade and the pivoted operating arms 13, or provision for lost motion made, so that oscillation of said pivoted arms may effect straight line movement of the scraping or cutting blade. l

I claim:

1. The combination, in crushing machincry of the rotary beater type, of a casing or frame havinga curved breaking surface, a scraping blade disposed within said casing and having end connecting portions; the walls of said casing having curved slots for the passage of said end connecting portions,

, arms pivotally'connected at oneend to the g and atthe opposite end to said scraping b a de, and means for moving said arms whereby said scra ing blade may be swung across the curved reaking surface.

2. The combination, in crushing machinery of the rotary beater type, of a casing or frame having a curved breaking surface and slots in its side walls adjacent to said breaking surface, a scraping blade disposed within said casing and having end connecting portions passing through said slots, arms pivotally connected at one end to the casin and at the opposite end to projecting ends to said scrapin blade, and means for moving said arms wl ereby said scra ing blade may be swung across, the curved reaking surface in clean ng contact therewith.

In witness whereof I have signed this specifioation.

WILLIAM A. BATTEY. 

